Lock-controlled valve.



GA C. MENSEN. LOCK-CUNTRLLED'VALVB APPLICATION FILED FEB.12. 1911.

Pawn July l?, 191?.

ATTQR MEMS.

:ilo

` GEORGE C. JENSEN, OF OAKLAND, CALIFORNIA.

Loox-CONTROLLED VALVE.

Specification of Letters Patent.

Patented July lll, lill *l f f Application filed February 12, 1917. Serial No. 148,989.

To all whom it may concern.'

Be it known that I, GEORGE C. citizen of the United States, residing at Oakland, in the county of Alameda and State ofy California, have invented certain new and useful Improvements in Lock-Controlled Valves, of which the following is a specification.

This invention relates to a device or -throttle valve for internal combustion engines and particularly to the type of valve or positioning intermediate of the motor and source of fuel, preferably in the engine manifold to enable the passage of the fuel mixture'into the motor to be controlled or shut off thereby.

The principal objects of the invention are to provide a valve which is capable of being locked'when 'in closed position through the operation of a lock controlled mechanism situated at a distant a means for permanently locking the valve lookin means in locked position should the contro ling rod between the valve and lock control mechanisms be severed in an endeavor to release the valve for movement; to provide a tubular protecting member surrounding the operating rod and having en- JENSEN, a

point; to provide gagementawith the valve casing and lock controlled"`inebhanism and to provide a means'gfor lpc'kingsaid tube from detachment from said valvefcasing and -lock controlled mechanism while the valve is in locked position.

With the above mentioned and other objects in view the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the accompanying drawings, and pointed out in the claim hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claim may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

To more fully comprehend the invention, reference is directed to the accompanying drawings, wherein,

Figure 1 is a view partly in vertical section of the preferred embodiment of myinvention, and for the purposes of illustration the valve is shown' as positioned in the inlet manifold of a motor.

Fig. 2 is a sectional View taken on the line 2-2 of Fig. l viewed in the direction of the arrows.

Fig. 3 is a vertical sectional View taken on the line 3-3 Fig. l, viewed in the direction of the arrows.

Fig. 4 is a view in side elevation partly in section illustrating the valve positioned to close the channel which it controls.

Fig. 5 is a View similar to that of Fig. 4 but with the valve positioned to connect the upper portion of the channel with a source of fuel supply.

Fig. 6 is a longitudinal sectional view of the lock controlled mechanism.

Fig. 7 is a sectional view .taken on the line 7-7 of Fig. 6 viewed in the direction of the arrows.

Referring more particularly to the several views of the drawings, wherein like characters of reference designate corresponding parts, l indicates the inlet manifold of' an internal combustion engine or motor provided with the channel 2 and branch portion 3 at the upper end, which is adapted to conneet with the engine or motor cylinders.

The manifold is formed with the transversely disposed valve chamber 4 therein in which is Arotatably mounted a controlling valve 5 cylindrical in cross-section and which is inserted in said chamber through the removal of the end wall thereof. The valve is provided at its ends `with the trun nions 7 operating in 'bearings 8 with the opposite ends of the chamber. of the trunnions 8 project beyond the ends of the respective bearings and to one is secured an operating lever 9 operated from a suitable point to rotate the valve -within the channel l and to the other are secured the stops l0 adapted to contact with the lug 1l and limit the rotation of the valve in either direction.

The valve is provided with a port l). extending transversely therethrough and which is adapted when the valve is rotated to a position as in Fig. l to register with said channel 2 and to permit the passage of a gaseous mixture into the motor. A suitable inlet 13 is provided in the wall of thechamber The ends i 4 at one side of the channel 2 and when the valve is in the above setiforth position, said inlet is closed by the valve wall 14 at one side of the port 12. The rotation of the valve in the direction of the arrow, Fig. '1 to dispose the port as in dotted lines Fig.' 5, positions the wall 14 to close the lower portion of the channel 2 and the port 12 in register with the inlet 13 and theupper portion of the channel 2v thereby shutting ofi' the flow of fuel mixture through the manifold and admittingfresh or uncarbureted air to be drawn into the motor to ena'ble the motor to operate as a brake.' When it is desired to position the valve to cut oi the supply of all air to the motor through the manifold, the same is positionedy as in Fig. 4 at which time the wall 114 extends across and closes the lower portion of the channel 2 and the inlet 13, and prevents the supply of either carbureted or fresh air to the motor through the manifold thusv preventing the operating of the motor Aunder its own power..

To enable the valve to be lobked in its -position to close the channel 2 I provide a groove 16 in a peripheral surface oithe valve asV in thev drawings, and rotatably mounted"to"coperate with thesame'- is a locking bolt 17 withinl abore' 18 which is and `5 of the drawings. The. locking bolt is provided with an larcuate recess 19 which 1sI of a radius equal to that of the valve 5 and when said recessyis positioned as in Figs. 1 and 5 of the drawings the valve is y free to rotate clear Vof the bolt and when by the locking tumblers 22. The barrel is" said valve is rotated to. a osition as in Fig. 4 with the groove 16 in e with the bolt 17 the bolt is capable of being rotated to position a solid portion ofv the samewithin the groove 16 and thus lockthe valve from rotation when in its closed position.y

The bolt is preferably operated from a distant point such as the vehicle cowl or dash, not shown, and at said distant point is positioned a lock controlled mechanism, Fig. 6, preferably comprising the housing 20 within which isa ke controlled barrel 21, adapted to be retaine in locked position retained in the housing by the nut 23 and is connected at its reduced inner end 24 with the locking bolt 17 by a' rigid connecting rod 25 which is of suicient length to maintain the outer end 26 of the bolt.17'

slightly spaced from the end wall-27 of the bore 18, as in Figs. 1, 41and 5 of the draw. ings. .A protecting tube 28 incloses the rod' 25 and the same is yreceived at one end .in an annular groove -'29 surrounding the open end of the bore `18 and at its opposite end is received in a suitable annular groove surrounding the reduced end 24 of the locking barrel 21. To lock the opposite ends of the -ed. to lie parallel with the tube 28 in their coperating grooves when the valve is in locked osition thus preventing the separation of t e locking mechanism from the valve rod, I rovide suitable guides at each end of the tule 28 and in which are positioned the respective locking pins 32 and 33 adapted to be received at their outer ends in the respective seats 34 and 35 formed respectively in the body of the housing 20 andA the wall surrounding the bore 18. When the valve is yin its unlocked position the pins 32 and 33 rest respectively in the depressions 36 and 37 in the end 2,4 of the barrel and in the outer end of the bolt 17, and when the barrel 21 is rotated to lock the valve from rotation the pins are caused to ride over the peripheral surface of the bolt vand barrel andare positioned to lock the respective ends of the tube in their coperating members.

Should an unauthorized person endeavor vrod and bolt will become permanently locked together and prevented from rotation immediately on the severing of said rod 25. This is accomplished by 'a suitable permanent locking plunger 38 mounted in a bore ,'39 which intersects the bore 18. The plunintersected by the valve 5 as in Figs. 1, 4

ger receiving aperture 40 is `formed transversely of the bolt 17 and the same is adapt,-

lunger 38 when the bolt is rotated to locking position. but oiiset therefrom a distance equal to that between the 'end wall 27 and ythe face 26. A

coil spring 41 surrounding 'aportion of the rod 25 and interposedletvlcc-n' the end of the bolt 17 and a collar 42Y forces the aperture 40 in line with theplunger 38 at such time as' the rodfv is severed while the valve is in locked position, permittin the plunger 38 to permanently lock the bo t from rotation until such time'as the plunger' 38 is re-v moved from the aperturef'40, this being -accomplished by cutting away either end wall of lthe bore 39. A setv screw 43 maintains the plunger 38 in its retracted position dur- -ing the installing of the valve in a motor and after the installation is complete the set screw is withdrawn and its receiving hole 'is sealed in any suitable manner.

Havingnthus described my invention, what Iclaimis: l

In combination vwith a tubular inlet manifold, a casing integral therewith, a rotatable valve in said casing and adapted for closing said manifold, a locking bolt coperating with thel valve for locking the same in its closed position, releasable lock controlled ,mechanism situated at a distant point, a t connection between said lock controlled mechanism and said bolt and capable of opmesme i erationvthrough said lock controlled mechanism to operate said bolt, a tubular protect' ing member surrounding said connection and coperating with said casing and lock controlled mechanism, end means for locking the said protecting member to said lock con trolled mechanism and to said casing on the .locking csmid valve, whereby the disconheating of the parts is prevented While the valve is in locked. `eeitioh.

In testimony Wereof )I have signed my name to this speciicattion in the presence of u subscribing Witness.

GEURGE C. JENSEN.

Witness:

D. B. RiCHARns. 

